EP3798396A1 - Closure caps - Google Patents

Abstract

A locking pin (11) for fittings of windows, doors or the like comprises a foot part (13) for arranging the locking pin (11) on a displaceable drive rod of a respective fitting and a head part (15) for locking engagement in a locking part assigned to the fitting of a respective position of the drive rod, the head part (15) comprising an inner pin (17) extending along a head part axis (K) away from the foot part (13) and a sleeve (19) which axially extends in the direction of the head part axis (K) is movably mounted in order to enable the axial length of the head part (15) to be adapted for a precisely fitting engagement in the respective closing part. Holding means (35, 37, 39, 41) for holding the sleeve (19) in a defined axial position are provided on the head part (15).

Description

The present invention relates to a locking pin for fittings of windows, doors or the like with a foot part for arranging the locking pin on a displaceable drive rod of a respective fitting and a head part for locking engagement in a locking part assigned to the fitting depending on a respective position of the drive rod.

Such a locking pin can be designed, for example, in the manner of a bolt which extends vertically from a drive rod, for example flat and elongated. In particular, such a drive rod can be received in a groove of a rebate of a sash of a window or a door so that the locking pin can be brought into engagement with a locking part arranged on a frame of the window or the door when the drive rod is moved, around the window or to lock the door or to release it for opening. In principle, however, the driving rod with the locking pin on the frame and the locking part on the sash can also be provided in reverse. Furthermore, such a locking pin is basically also suitable for use in a fitting arrangement in which the locking pin is fixed in position to a fitting part and instead the locking part is movable relative to the locking pin.

The foot part of the locking pin is used in particular to firmly connect the locking pin to the drive rod. This can be done, for example, by riveting. The foot part generally extends along a foot part axis and is designed in the manner of a bolt. Thus, a locking pin, which is riveted to a drive rod via such a foot part, can be rotated about the foot part axis by applying sufficient torque against the frictional engagement of the riveted connection. This is useful, for example, when a head part axis along which the head part extends is eccentric with respect to the foot part axis, that is to say offset in parallel. By rotating the locking pin about the foot part axis, the head part can then be displaced laterally to the longitudinal extension of the connecting rod in order to set a locking pressure of the sash against the frame of the window or the door.

So that the head part of the locking pin can engage in the locking part when the window or door is locked, the locking part typically has an elongated receptacle into which the locking pin can be inserted perpendicular to the head part axis and in particular parallel to a longitudinal extension of the drive rod when the drive rod is moved . The length of the head part must be such that the head part extends from the connecting rod over the distance between the sash and the frame, i.e. over the so-called "rebate clearance", to the closing part and a little way into it. Because if the head part is too short, it cannot intervene in the closing part and thus not lock the wing. If, on the other hand, it is too long, it will hit the frame and cause damage or prevent the sash from closing.

To increase the security of the engagement of the locking pin in the locking part, it is known to design the head part as a mushroom head pin which has a circumferential diameter enlargement at the end of the head part spaced from the foot part. The receptacle of the closing part is then designed so that the mushroom head can be inserted into the receptacle laterally, i.e. in the direction of movement of the drive rod, but cannot be moved out of the closing part perpendicular thereto because the receptacle forms an undercut for the mushroom head. Such a design prevents the locking pin is moved from the locking part in the axial direction without actuating the drive rod, for example in the event of a break-in attempt by prying open.

In particular, when a locking pin is designed as a mushroom head pin, the correct length adjustment of the head part is particularly important so that the circumferential diameter enlargement is guided precisely behind the undercut when it is laterally inserted into the receptacle of the locking part, instead of hitting the undercut and thereby engaging the locking part to be prevented.

It is therefore advantageous if the locking pin is adjustable in length. This can be achieved, for example, in that the head part of the locking pin comprises an inner pin extending along a head part axis away from the foot part as well as a sleeve which is mounted on or relative to the inner pin axially with respect to the head part axis in order to enable an, in particular automatic To allow adjustment of the axial length of the head part for a precisely fitting engagement in the respective closing part. For this purpose, the sleeve can, for example, be freely movable axially between two limit positions, namely a minimum position and a maximum position, by which a minimum or maximum length of the head part is defined. In addition, the sleeve, in particular a circumferential diameter enlargement on the sleeve intended to form a mushroom head, and / or the receptacle of the closing part can be shaped in such a way that when the sleeve meets the entrance of the receptacle of the closing part, it is automatically moved into the correct position . For this purpose, bevels, ramps or other guides acting as insertion aids can be provided, for example, on the sleeve or the closing part.

If such freely adjustable locking pins are arranged on horizontal spars of a sash or frame, however, the force of gravity causes the locking pin, when it is not engaging in the locking part, is always adjusted to its minimum or maximum length, so that the head part is again pulled in length or pushed together each time it is locked and is adjusted in the opposite direction again when it is opened. This can result in increased wear on the sleeve and / or the inner journal. In addition, it may be that the automatic displacement of the sleeve brought about by the interaction with the closing part is perceived by a user of the window or the door, in particular acoustically, and is perceived as annoying.

As an alternative to such an independent length adjustment to the respective rebate clearance, locking pins are known which can be manually adjusted to a specific length. Thus, these locking pins can be set to a suitable length when installing a sash in a frame. However, since the frame "settles" over time due to its own weight, that is, with its end remote from the tape, it sinks a little over time to guarantee the locking part permanently.

It is therefore an object of the invention to provide a locking pin which can be automatically adjusted in length with ease of use and with reduced wear.

The object is achieved by a locking pin with the features of claim 1 and, in particular, in that holding means for holding the sleeve in a defined axial position are provided on the head part. The sleeve of this locking pin is therefore basically at least between two limit positions (minimum or maximum length of the locking pin) freely, in particular continuously, axially movably mounted on the inner pin of the head part, but can be in a defined axial position, i.e. a certain position from the between the two limit positions possible positions, by means of the holding means being held. The holding means can (despite the use of this expression in the plural) be a single element, for example only provided on the sleeve or only on the inner pin, or a device made up of several elements. In principle, the holding means can be designed to hold the sleeve in the defined axial position only temporarily, for example in accordance with a respective actuation of the holding means. In general, however, it is preferred if the holding means acts essentially permanently in a holding manner on the sleeve.

The aforementioned defined axial position can be a position which is individually specified by a user, for example by the user making an adjustment on the holding means. The defined axial position can, however, also be defined automatically, for example by the described automatic adaptation of the axial length of the head part to the respective rebate clearance. In this case in particular, the defined axial position can also change over time. In principle, however, the defined axial position can also be a predetermined and / or unchangeable basic or neutral position of the sleeve, in which the sleeve is arranged e.g. essentially in the middle between the two mentioned limit positions.

Such a locking pin can therefore on the one hand be automatically displaced to a suitable length of the head part due to its axial mobility, in particular by interacting with the locking part. On the other hand, at least after the locking pin is guided out of the locking part again, it is held in this or another defined axial position by means of the holding means. For this purpose, the holding means can, for example, only be activated by the locking pin engaging in the closing part or only when leaving the closing part to hold the sleeve. However, the holding means are preferably permanently effective, so that it is preferred if the holding means are designed to hold the sleeve in the defined axial position in such a way that that an, in particular automatic, adjustment of the axial length of the head part at least in one direction, preferably in both directions, remains possible.

The purpose of the holding means is not to prevent or hinder the automatic adaptability of the length of the locking pin to the respective rebate clearance. Rather, this automatic adaptability is to be retained and only wear and tear is to be minimized. For this purpose, the sleeve can be held by means of the holding means in that axial position which corresponds to the length of the locking pin which is suitable in each case for a precisely fitting insertion into the locking part. Or the holding means hold the sleeve in an adjustable, for example central position, from which only a slight automatic length adjustment is required in each case. Thus, when locking and releasing the respective wing, the sleeve is not moved at all or comparatively little with respect to the inner journal, so that the sleeve and inner journal are less stressed.

According to an advantageous embodiment, the holding means are designed so that the defined axial position in which they hold the sleeve is adjustable. The setting takes place in particular without tools and preferably by simply pulling or pushing the sleeve in the axial direction into that position which is to be the new defined axial position in which the sleeve is to be held from now on. However, the setting can also be made by adjusting a characteristic of the holding means, such as a spring constant, a contact pressure or a spatial alignment.

Furthermore, it is preferred if the holding means are designed to hold the sleeve in the defined position due to static friction. The static friction is preferably designed in such a way that the sleeve can be axially displaced by hand relative to the inner pin, but at least that the sleeve interacts with a respective closing part for the aforementioned automatic Length adjustment can be axially displaced, whereas displacement is prevented only due to gravity. The consequence of the static friction is that the sleeve is simply held in the axial position in which it was last moved, but that the sleeve can otherwise still be freely adjusted axially between the mentioned limit positions without being impaired by overcoming the static friction forces.

According to a preferred development, the holding means comprise clamping lugs formed on the sleeve which are adapted to exert radial pressure on the inner journal. In this way, a static friction acting in a suitable manner and to a suitable extent between the sleeve and the inner journal can be achieved. For example, the sleeve can have an inner diameter which essentially corresponds to the outer diameter of the inner journal and with which the sleeve rests against the outer diameter of the inner journal. The clamping lugs on the sleeve can be designed in such a way that, if the sleeve was detached from the inner pin, they would assume an essentially force-free rest position in which they protrude into the area of the inner diameter of the sleeve. However, if the sleeve is placed on the inner pin, the clamping lugs consequently press radially on the inner pin and thus increase the static friction between the sleeve and the inner pin.

The sleeve preferably has a cylinder jacket shape, at least in sections, the clamping lugs being formed by cutouts in the manner of incisions in the cylinder jacket shape. The clamping lugs can therefore be produced in a simple manner in that the cylinder-jacket-shaped sleeve is slotted from one axial end, in particular regularly in the circumferential direction. The areas between these incisions then form the clamping lugs. To generate a suitable contact pressure for the static friction, the sleeve can be in the area of the clamping lugs, for example at the axial ends of the clamping lugs, have radially inward projections or other types of (continuous or interrupted circumferential) diameter reductions.

According to an alternative embodiment, the holding means comprise at least one pretensioning device for pretensioning the sleeve into a neutral position. Such a pretensioning device is preferably a plate spring or some other spring that requires a comparatively small amount of space. In this embodiment, the sleeve is thus held in a defined axial position in that it is pretensioned into the neutral position. The neutral position thus corresponds to the defined axial position and is determined by the action of the at least one pretensioning device. The sleeve of the locking pin assumes the neutral position at least when there are no other significant forces acting on the sleeve, in particular when the head part of the locking pin is not engaging an associated locking part. Nevertheless, in particular by using a suitable spring rate, it can be ensured that an automatic length adjustment of the head part of the locking pin is still possible, since the length adjustment can then also take place against the bias. Because the sleeve is held in the aforementioned neutral position, which is in particular arranged at least substantially in the middle between the limit positions of the axial mobility of the sleeve, the distance by which the sleeve is displaced during the automatic adjustment is comparatively small overall and leads thus to a reduced wear.

If, for example, the pretensioning device is firmly connected to the inner journal on the one hand and the sleeve on the other, a single pretensioning device can be sufficient to pretension the sleeve from both axial directions into the neutral position, which then simply corresponds to the rest position of the pretensioning device. Only a pretensioning device is provided that is not connected to both the sleeve and the inner pin or any other part of the locking pin is, it may be that the sleeve is pretensioned only from one axial direction into the neutral position and is freely movable in the other axial direction from the neutral position up to one of the limit positions. The pretensioning device can then be arranged, for example, in each case in such a way that it pretensions the sleeve just against the force of gravity.

Alternatively, especially if a respective pretensioning device is not firmly connected to the sleeve and another part of the locking pin, it can be advantageous if the holding means comprise two pretensioning devices which pretension the sleeve in opposite directions with regard to their axial mobility. The neutral position then corresponds to a rest position of the system comprising both pretensioning devices. Displacement of the sleeve from the neutral position in one axial direction then acts against the pretensioning of one pretensioning device, and displacement in the other axial direction acts against the pretensioning of the other pretensioning device.

Furthermore, it may be that the sleeve is pretensioned by a respective pretensioning device only in the respective edge areas of its axial mobility, but in between there is a so-to-speak pretension-free axial area in which the sleeve is not subject to any force from the pretensioning devices and is therefore essentially freely movable axially . The aforementioned neutral position then covers this entire area. This applies both if only one and if several pretensioning devices are provided.

Furthermore, it is advantageous if at least one pretensioning device can be adjusted with regard to its pretensioning in order to be able to change the respective neutral position by changing the pretensioning. In principle, however, a single constant neutral position is sufficient to achieve the advantages essential to the invention.

According to a further development, a respective pretensioning device is effective between a stop surface formed on a circumferential collar of the inner journal and a counter-stop surface formed on a reduction in the inner circumference of the sleeve. Alternatively or additionally, a (further) respective pretensioning device can be effective between a stop surface formed on a base plate, via which the foot part and the head part are connected to one another, and a counter-stop surface formed on an end face of the sleeve. The stop surface of the circumferential collar of the inner pin and the counter-stop surface of the inner circumference reduction of the sleeve form, in particular, mutual undercuts that lock the sleeve against loosening from the inner pin. As a result, they limit the axial mobility of the sleeve to a first limit position in which the length of the locking pin is in particular a maximum. As a transition between the head part and the foot part, a base plate can also be provided, for example in the form of a flat circumferential extension with, for example, a round cross section or a cross section suitable for the application of an open-ended wrench. With this base plate, the axial mobility of the sleeve in the opposite direction can be limited up to a second limit position, which corresponds to a minimum length of the locking pin. It is therefore advantageous to provide respective pretensioning devices precisely between these stop surfaces and counter stop surfaces, which may be provided anyway to limit the axial mobility of the sleeve.

According to an alternative embodiment, the holding means comprise a spacer element which is designed to limit the axial mobility of the sleeve to a maximum position or minimum position by which a maximum or minimum length of the head part is defined, wherein, in particular by adjusting the spacer element, different maximum or minimum positions can be set. The respectively set maximum position or minimum position therefore corresponds to the defined axial position in which the sleeve is held by the spacer element. In this embodiment the one is defined axial position advantageously adjustable and is in particular defined in that the axial mobility of the sleeve is limited by it at least in one direction. This can be achieved, for example, in that the spacer element forms a support surface as a stop for the sleeve at a certain distance from one of the two limit positions of the axial mobility of the sleeve. In particular, the mobility of the sleeve can be limited by the spacer element in the direction of movement in which the sleeve is urged due to gravity. The spacer element can thus serve to shorten the distance which the sleeve travels between a locking position predetermined by the closing part when the sash is locked and a limit position assumed by gravity outside the closing part, so as to reduce wear.

According to an advantageous development, the spacer element has a support surface which runs inclined to the plane and which interacts with the sleeve in order to limit the mobility of the sleeve. Thus, depending on the respective position of the spacer element, the sleeve can interact with the support surface at a different point in each case, in particular rest on the support surface or hit the support surface. Since the course of the support surface is inclined with respect to the plane of movement, there are different support points or support areas of the support surface at different axial "heights" with respect to the head part axis.

By adjusting the spacer element within the above-mentioned plane, support points or support areas of the support surface of different heights can be selected in order to limit the mobility of the sleeve. Consequently, this axial limitation can be adjusted by moving the spacer element, so that different maximum or minimum positions of the sleeve can be set. The course of the support surface can have a continuous and, in particular, constant axial height increase or decrease. In principle, however, the course can also be discontinuous, for example stepped, or have axial increases or decreases in height of variable steepness.

For example, the spacer element is designed essentially as a wedge disk and is preferably movable within a plane perpendicular to the head part axis. As a wedge disk, the spacer element thus has a thickness that increases variably or preferably constantly, approximately along a wedge axis. An adjustable stop for the variable limitation of the movability of the sleeve can be implemented in a structurally particularly simple manner by means of a wedge disk. Depending on the position and / or orientation of the wedge disk relative to the sleeve, the wedge disk can fill different and in particular differently long areas of the axial mobility of the sleeve and thereby limit the mobility of the sleeve in a respective direction to a maximum or minimum position. As movements of the wedge disk, for example, translational movements, in particular in the direction of the mentioned wedge axis, or also rotational movements within the mentioned plane come into question.

The spacer element can be movably mounted, for example, on a bearing section of the locking pin. In particular, the spacer element is movable within a plane perpendicular to the head part axis, for example by being translationally displaceable within the plane, for example along an axis, or rotatable about an axis. According to a preferred development, the spacer element is mounted rotatably about an adjustment axis eccentric to the head part axis. The adjustment axis is thus arranged parallel to the head part axis, but offset with respect to the head part axis. The adjustment axis can in particular coincide with the named foot part axis of the foot part of the locking pin.

If the spacer element is a wedge disk, the wedge disk is preferably arranged with respect to its disk shape at least substantially perpendicular to the head part axis. As a result, when the wedge disk rotates around the adjustment axis, the wedge disk remains aligned vertically to the head part axis and the adjustment axis, but the thickness of the part of the wedge disk protruding into the area of the head part axis which is eccentric to the rotation changes. This change in thickness due to the rotation of the wedge disk around the adjustment axis can advantageously be used to limit the mobility of the sleeve in a simple manner as desired to a respective defined axial position (maximum position or minimum position).

In order to secure the spacer element in a set position, that is to say to prevent unintentional adjustment of the defined axial position of the sleeve, securing means can also be provided which manually or automatically block the spacer element against displacement. The blocking can also merely consist in stabilizing the spacer element in a respective position by counteracting a displacement of the spacer element with a certain mechanical resistance which, however, has to be overcome (without damaging the respective securing means).

In this context, it is advantageous if a latching mechanism is effective between the spacer element and the bearing section in order to restrict the arrangement of the spacer element relative to the bearing section to a limited number of defined positions. In this embodiment, the mobility of the spacer element is not stepless, but rather is determined by the interaction of the bearing section with the spacer element on transitions between some defined positions. The spacing element is consequently moved in a stepped manner due to the locking mechanism mentioned. This allows the adjustment of the spacer element and thus the defined axial Position of the sleeve can be restricted to certain states that can be maintained particularly reliably due to the locking mechanism.

According to a preferred development, the spacer element rests with the inner circumference of a through opening on an outer circumference of the bearing section, the respective profiles of the through opening and the bearing section being designed relative to one another in such a way that stable positions of the spacer element are defined and the spacer element is in other, unstable positions a respective one of the stable positions is pushed. The spacer element is consequently not completely freely displaceable due to the interaction of the named profiles. Rather, stable positions of the spacer element are defined as a result, into which the spacer element is advantageously pushed when it is not yet in such a stable position. The stable positions thus determine which positions the spacer element can assume in the long term for setting the defined axial position of the sleeve. The other positions are unstable positions insofar as the spacer element is exposed to forces in these positions which urge it to, in particular the closest, stable position and preferably automatically move it into this stable position.

For example, such a mechanism can be achieved in a spacer element rotatable about an adjustment axis in that the through opening has a hexagon socket or another internal polygon as a profile and the bearing section is at least essentially designed as an external hexagon or an external polygon corresponding to the internal polygon, but at least one of the Profile deviates from this basic shape to a certain extent, in particular has rounded corners and / or curved edges. Such profiles then allow a relative rotational position of the spacer element to the bearing section in one of six or another number of defined evenly distributed (stable) positions, with the positive fit between these profiles, however is not exact. The above-mentioned deviations between the profiles are in particular such that, at least with sufficient elastic deformability of the through opening and / or the bearing section, a rotation of the spacer element relative to the bearing section against the actual form fit is possible. In this case, however, the profile of the bearing section and the profile of the through opening are pressed against one another as long as a stable position is not reached again. As a result of this action of force, the spacer element essentially inevitably engages again in one of the stable positions at the end of a rotary movement.

Furthermore, it is advantageous if, in addition to the spacer element, the holding means comprise a pretensioning device for pretensioning the sleeve into the respective maximum or minimum position. In such an embodiment the sleeve is not only limited in its axial mobility to a defined axial position, namely a maximum position or minimum position, by the spacer element, but is additionally biased into this position. The sleeve is therefore still axially movable between the maximum position or minimum position and the opposite limit position, so that the aforementioned automatic length adjustment of the locking pin is still possible. If, however, the sleeve does not interact with an associated closing part, it assumes the maximum or minimum position due to the preload. This takes place regardless of whether the mobility of the sleeve is limited to a maximum position or to a minimum position, as well as the orientation in which the locking pin is aligned with respect to gravity, since the preload compensates for the influence of gravity if necessary. Thus, such a locking pin can be used particularly flexibly at different points on a sash or frame, can be set in a defined axial position to reduce wear and yet has an automatic length adjustment.

The object is also achieved by a fitting arrangement for a window, a door or the like, which comprises a drive rod and a locking pin arranged thereon in accordance with one of the described embodiments or combinations of individual advantageous features thereof.

Fig. 1A und 1B

zeigen in einer Perspektivdarstellung und einer Schnittdarstellung eine Ausführungsform eines Verschlusszapfens, dessen Haltemittel dazu ausgebildet sind, die Hülse aufgrund von Haftreibung zu halten.

Fig. 2A und 2B

zeigen in einer frontalen und einer perspektivischen Schnittdarstellung eine Ausführungsform eines Verschlusszapfens, dessen Haltemittel zwei Vorspannvorrichtungen umfassen, welche die Hülse in eine definierte axiale Stellung vorspannen.

Fig. 3A bis 3C

zeigen in zwei Schnittdarstellungen und einer Perspektivdarstellung eine Ausführungsform eines Verschlusszapfens, dessen Haltemittel ein Abstandselement in Form einer exzentrisch drehbeweglichen Keilscheibe umfassen.

The invention is explained in more detail below by way of example only with reference to the figures.

Figures 1A and 1B

show, in a perspective view and a sectional view, an embodiment of a locking pin, the holding means of which are designed to hold the sleeve due to static friction.

Figures 2A and 2B

show, in a frontal and a perspective sectional view, an embodiment of a locking pin, the holding means of which comprise two pretensioning devices which pretension the sleeve into a defined axial position.

Figures 3A to 3C

show, in two sectional views and a perspective view, an embodiment of a locking pin, the holding means of which comprise a spacer element in the form of an eccentrically rotatable wedge disk.

The Figures 1A and 1B , 2A and 2B as 3A to 3C show three different embodiments of a locking pin 11. Corresponding elements of the locking pin 11 are each identified with the same reference numerals. The various embodiments have in common that the locking pin 11 each comprises a foot part 13 in the form of a cylindrical bolt and a head part 15. The head part 15 is essentially constructed in two parts and comprises an inner pin 17 and one movable on the inner pin 17 mounted sleeve 19. The inner pin 17 and the sleeve 19 are arranged concentrically to a head part axis K, along which the head part 15 extends and which is aligned parallel but offset to a foot part axis F which corresponds to the cylinder axis of the foot part 13.

The foot part 13 is designed at its end facing away from the head part 15 for riveting to a drive rod of a fitting, as in FIG Figures 2A and 2B can be seen. In Figures 3A and 3B the foot part is shown in the riveted state, the connecting rod not being shown.

In the embodiments according to Figures 1A and 1B As well as 2A and 2B, a disk-shaped base plate 21 is formed between the foot part 13 and the head part 15 perpendicular to the foot part axis F and to the head part axis K, which has a substantially round cross-section, but on which straight sections are formed for placing an open-end wrench.

At the end of the head part 15 facing away from the foot part 13, the inner pin 17 has in its end face a receptacle 23 with a hexalobular profile ("Torx") penetrating axially into the inner pin 17. This receptacle 23 is used so that the locking pin 11 can be rotated about its foot part axis F relative to the drive rod by means of a corresponding tool engaging in the receptacle 23 in order to adapt the lateral alignment of the head part 15 with respect to the direction of movement of the drive rod due to the eccentricity of the head part axis K to be able to set a locking pressure.

At the same end of the head part 15, the inner pin 17 also has on its outer circumference a circumferential collar 25, which represents a wider diameter of the inner pin 17. The sleeve 19 guided around the inner journal 17 and axially slidingly on the inner journal 17 with respect to the head part axis K has an inner diameter which is the same as the outer diameter of the collar 25 corresponds in an area pointing away from the foot part 13, but is reduced in an area oriented towards the foot part 13 and corresponds there to the outer diameter of the remaining inner journal 17.

This inner circumference reduction 27 and the collar 25 engage behind one another, so that the sleeve 19 is undetachably mounted on the inner journal 17. The axial mobility of the sleeve is limited by the interaction of the collar 25 and the inner circumference reduction 27 in the direction away from the foot part 13 to a limit position which corresponds to a maximum length of the head part 15 or the locking pin 11. In the opposite direction, the axial mobility of the sleeve is limited in that it strikes with an end face 29 facing the foot part 13 against the base plate 21 or another stop formed at the transition between the foot part 13 and the head part 15. This then represents a further limit position which corresponds to a minimum length of the head part 15 or the locking pin 11.

On its outer circumference, at the end remote from the foot part 13, the sleeve 19 has a circumferential widening 31, so that the head part 15 or the locking pin 11 is designed as a mushroom pin in order to increase the security of the locking of a window or a door against an attempted break-in .

In the case of the Figures 1A and 1B In the illustrated embodiment, the sleeve 19, which is essentially designed as a hollow cylinder, has elongated recesses in the form of axially running incisions 33, which extend from the end face 29 over at least approximately half of the axial extent of the sleeve 19. As a result, clamping lugs 35 are formed on the sleeve 19 in the areas between the incisions 33, which are slightly bendable in the radial direction due to a certain inherent elasticity.

The clamping lugs 35 have projections 37 on an inner side facing the inner journal 17, which, due to the lack of space between the clamping lugs 35 and the inner journal 17, press against the inner journal 17 because of the inherent elasticity of the clamping lugs 35. In Figure 1B this is shown for illustration as if the projections 37 were pressed into the inner pin 17, but this is not the case.

Via the projections 37, the clamping lugs 35 exert radial pressure on the inner pin 17, whereby static friction between the sleeve 19 and the inner pin 17 is increased at least to such an extent that the sleeve is axially assumed against gravity or comparably slight forces Position is held. By manual axial adjustment of the sleeve 19, this axial position can be defined as desired. The axial position can, however, also be defined in that the sleeve, in cooperation with an associated closing part (not shown), is automatically adjusted into a closing position suitable for insertion into the closing part and is then held in this defined axial position with a friction fit.

In the alternative embodiment according to Figures 2A and 2B The sleeve 19 is held by means of two pretensioning devices 39 which are designed as disc springs and are arranged between corresponding surfaces on the circumferential collar 25 and the inner circumference reduction 27 or the base plate 21 and the end face 29. The pretensioning devices 39 pretension the sleeve 19 in the opposite direction, the pretensioning forces just canceling each other out in the shown neutral position of the sleeve 19. The sleeve 19 is therefore held in this neutral position by the pretensioning devices 39, at least as long as no further significant forces act on it.

In contrast to the aforementioned embodiment according to Figures 1A and 1B can the defined axial position in which the sleeve 19 is held, in the embodiment according to Figures 2A and 2B cannot be easily adjusted. In principle, however, it is possible for the pretensioning devices 39 to be adjustable, for example with regard to their spring force, such that the neutral position can be changed. Another difference between the embodiments is that the pretensioning devices 39 do not hold the sleeve 19 in its closed position assumed in the closing part when it leaves an associated closing part, but rather move it back into the neutral position. As shown, this neutral position is preferably essentially in the middle between the two limit positions mentioned. As a result, the distance to be covered by the sleeve 19 with the described automatic length adjustment is kept comparatively small on average, since the distance in one direction corresponds at most to the distance between the neutral position and one of the limit positions.

In the further embodiment according to Figures 3A to 3C a spacer element 41 in the form of a wedge disk is provided instead of the base plate 21. As in the sectional views of the Figures 3A and 3B As can be seen, the spacer element 41 has a central through opening 43 which is mounted around a bearing section 45 forming the transition between the foot part 13 and the head part 15 of the locking pin 11. The bearing section 45 and thus also the through opening 43 are arranged concentrically to the foot part axis F, about which the spacer element 41 can be rotated and which therefore at the same time forms an adjustment axis E of the spacer element 41. The rotational mobility of the spacer element 41 is consequently eccentric to the head part axis K and in particular to the sleeve 19. This can be used to hold the sleeve 19 axially in different minimum positions by rotating the spacer element 41, as will be explained below.

In the in the Figure 3A and 3C The position of the spacer element 41 shown is the area of greatest thickness, ie greatest axial extent, of the spacer element 41 with respect to the adjustment axis E on the diametrically opposite side of the head part axis K, while the area of the smallest thickness is aligned with respect to the adjustment axis E in the same direction as the head part axis K. In this position, the sleeve 19 can protrude into a blind hole 47, as shown, which is formed in the spacer element 41 and has the same eccentricity to the adjustment axis E as the head part axis K in this position. The blind hole 47 is just deep enough that it reaches the mentioned area of smallest thickness (in Figure 3A and 3C left) is almost flush with this area. In this in Figure 3A The position of the spacer element 41 shown is the mobility of the sleeve 19 to a (namely the in Figure 3A The minimum position of the sleeve 19, which is defined by the area of the smallest thickness of the spacer element 41, is limited.

If the spacer element 41 is rotated from this position about the adjustment axis E, the axially rising circumferential edge of the blind hole 47 is pushed under the end face 29 of the sleeve 19 and thereby lifts the sleeve. The end face 29 of the sleeve 19 then no longer rests on the bottom of the blind hole 47 in its position oriented as far as possible towards the foot part 13, but rests on a support surface 49 that acts like a ramp and extends from the area of smallest thickness around the edge of the Blind hole 47 extends around to the area of greatest thickness of the spacer element 41. So that there is no jamming when the bearing surface 49 is pushed under the end face 29 of the sleeve 19, the radially outer edge of the end face 29 also has a chamfer 51. Depending on the position of the spacer element 41, a different support area of the support surface 49 interacts with the end face 29 of the sleeve 19 and thereby limits the axial mobility of the sleeve 19 to a different minimum position.

In Figure 3B That position of the spacer element 41 is shown in which the sleeve 19 rests with its end face 29 at the axially "highest" possible contact area of the contact surface 49, ie the most distant from the foot part 13, and its mobility to another (namely the one shown in FIG Figure 3C The "maximum") minimum position shown is limited than in the case of the in Figure 3A shown position of the spacer element 41, which corresponds to a closer to the foot part 13 ("minimum") minimum position. The spacer element 41 is in FIG Figure 3B compared to the in Figure 3A The position shown has just been rotated 180 ° around the adjustment axis E. The area of greatest thickness is therefore located with respect to the adjustment axis E in the same direction as the head part axis K, while the area of smallest thickness of the spacer element 41 is oriented diametrically opposite thereto.

As especially in Figure 3C As can be seen, the through opening 43 of the spacer element 41 has the profile of a hexagon socket. The profile of the bearing section 45 is accordingly designed as an external hexagon, the corners of which, however, are rounded. Thus, the spacer element 41 is actually locked against rotation about the adjustment axis E in a form-fitting manner. The through opening 43 of the spacer element 41, however, has sufficient elasticity to nevertheless enable rotation. The rounded corners of the profile of the bearing section 45 are then at least temporarily pressed against the respective edges of the profile of the through opening 43, whereby the edges are slightly deformed and exert a counter pressure on the respective corners. The pressure only decreases when a stable position is reached again, i.e. a position in which corner to corner and edge to edge come to rest, of which there are six due to the hexagonal profile. In other positions, which are unstable in this respect, the pressure mentioned, on the other hand, leads to the spacing element 41 locking into the closest stable position, so to speak. As a result, the possible alignment of the spacer element 41 on the bearing section 45 is limited to the six mentioned stable positions, which are thereby kept particularly stable at the same time.

Even if the sleeve 19 is always shown in the figures as resting on the spacer element 41, the sleeve 19 is not always fixed in that axial position in which it rests on the spacer element 41 depending on the position of the spacer element 41. This is because, based on such minimum positions (such as the two shown) depending on the position of the spacer element 41, the sleeve can still be moved axially in the direction away from the foot part 13 in order to enable an automatic length adjustment of the locking pin 11 due to the interaction with an associated locking part . However, the sleeve 19 is supported by one of the pretensioning devices 39 of FIG Figures 2A and 2B Embodiment shown comparable biasing device 39 biased in the direction of the respective minimum position. Axial movement of the sleeve 19 from its respective minimum position thus takes place against the pre-tensioning of the pre-tensioning device 39, which is arranged and effective between the circumferential collar 25 of the inner journal 17 and the inner circumferential reduction 27 of the sleeve 19. As a result, on the one hand, the automatic length adjustment of the locking pin 11 is not hindered, but on the other hand it is nevertheless achieved that the sleeve is held in its respective minimum position, at least when it is not interacting with a closing part.

Regardless of which of the described ways the sleeve 19 is held in a respective defined axial position by holding means 35, 37, 39, 41, it is achieved in the three illustrated embodiments of a respective locking pin 11 that the locking pin 11 is automatically operated with ease is adjustable in length and has reduced wear.

Reference list

11

Locking pin

13th

Foot part

15th

Headboard

17th

Inner pin

19th

Sleeve

21

Base plate

23

admission

25th

around running collar

27

Inner circumference reduction

29

Front side

31

Extension of scope

33

incision

35

Clamping lug

37

head Start

39

Pretensioner

41

Spacer

43

Through opening

45

Warehouse section

47

Blind hole

49

Support surface

51

Chamfer

E.

Adjustment axis

F.

Foot part axis

K

Header axis

Claims (15)

Locking pin (11) for fittings of windows, doors or the like with
a foot part (13) for arranging the locking pin (11) on a displaceable drive rod of a respective fitting and
a head part (15) for locking engagement in a locking part assigned to the fitting depending on a respective position of the drive rod,
wherein the head part (15) comprises an inner pin (17) extending away from the foot part (13) along a head part axis (K) and a sleeve (19),
which is mounted axially movable in the direction of the head part axis (K) in order to enable the axial length of the head part (15) to be adapted for a precisely fitting engagement in the closing part,
characterized in that
holding means (35, 37, 39, 41) for holding the sleeve (19) in a defined axial position are provided on the head part (15). Closure pin according to claim 1,
wherein the holding means (35, 37, 39, 41) are designed to hold the sleeve (19) in the defined axial position in such a way that an, in particular automatic, adjustment of the axial length of the head part (15) at least in one direction, preferably in both directions, remains possible. Closure pin according to claim 1 or 2,
wherein the holding means (35, 37, 39, 41) are designed so that the defined axial position in which they hold the sleeve (19) is adjustable. Locking pin according to at least one of the preceding claims,
wherein the holding means (39, 41) comprise a spacer element (41) which is designed to limit the axial mobility of the sleeve (19) to a maximum position or minimum position by which a maximum or minimum length of the head part (15) is defined ,
wherein, in particular by adjusting the spacer element (41), different maximum or minimum positions can be set. Closure pin according to claim 4,
wherein the spacer element (41) has a support surface (49) which runs inclined to the plane and is in particular designed essentially as a wedge disk. Closure pin according to claim 4 or 5,
wherein the spacer element (41) is movably mounted on a bearing section (45) of the locking pin (11), in particular within a plane perpendicular to the head part axis (K), and preferably rotatable about an adjustment axis (E) eccentric to the head part axis (K) is. Closure pin according to claim 6,
wherein a latching mechanism is effective between the spacer element (41) and the bearing section (45) in order to restrict the arrangement of the spacer element (41) relative to the bearing section (45) to a limited number of defined positions. Closure pin according to claim 7,
wherein a profile of a through opening (43), with the inner circumference of which the spacer element (41) rests against an outer circumference of the bearing section (45), and a profile of the bearing section (45) relative to one another in such a manner are designed so that stable positions of the spacer element (41) are defined and the spacer element (41) is urged from other, unstable positions into a respective one of the stable positions. Locking pin according to at least one of claims 4 to 8,
wherein the holding means (39, 41) further comprise a pretensioning device (39) for pretensioning the sleeve (19) into the respective maximum position or minimum position. Locking pin according to at least one of claims 1 to 3,
wherein the holding means (35, 37) are designed to hold the sleeve (19) in the defined position due to static friction. Closure pin according to claim 10,
wherein the holding means (35, 37) comprise clamping lugs (35) formed on the sleeve (19) which are adapted to exert radial pressure on the inner pin (17). Locking pin according to claim 11,
wherein the sleeve (19) has a cylinder jacket shape, at least in sections, and the clamping lugs (35) are formed by recesses in the manner of incisions (33) in the cylinder jacket shape. Locking pin according to at least one of claims 1 to 3,
wherein the holding means (39) comprise at least one pretensioning device (39) for pretensioning the sleeve (19) into a neutral position,
and in particular wherein the holding means (39) comprise two pretensioning devices (39) which pretension the sleeve (19) with regard to its axial mobility in opposite directions. Locking pin according to claim 13,
wherein a respective pretensioning device (39) is effective between a stop surface formed on a circumferential collar (25) of the inner pin (17) and a counter-stop surface formed on an inner circumference reduction (27) of the sleeve (19) and / or a respective pretensioning device (39) between a stop surface formed on a base plate (21), via which the foot part (13) and the head part (15) are connected to one another, and a counter-stop surface formed on an end face (29) of the sleeve (19) is effective. A fitting arrangement for a window, a door or the like, comprising at least one drive rod and a locking pin (11) arranged on the drive rod according to at least one of the preceding claims.

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